My car started smoking today, from around the over fill box for the antifreeze. I recently checked the overfill box and there was no hole or crack anywhere..Now the check engine light is on and its running real crappy. I felt the little tubes to and from the over fill resivior, and they where hot. Could it be that the metal tube going into the overfill box is clogged??? Also how do i get the codes from the Check Engine Light....you know..the one with the falshing and pausing?????????